Salzbachtal Bridge

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Coordinates: 50 ° 3 ′ 8 ″  N , 8 ° 15 ′ 18 ″  E

A66 Salzbachtal Bridge
Salzbachtal Bridge
View from the bridge towards Dyckerhoffbruch
use Highway bridge
Convicted Federal motorway 66
Crossing of Salzbach
Subjugated Mainzer Straße Right Rhine route Taunus Railway
place Wiesbaden
Entertained by Hessian road and traffic administration
construction T-beam bridge , box girder bridge
overall length 310 m
vehicles per day 80,400
completion 1963
opening 1963
location
Salzbachtal Bridge (Hesse)
Salzbachtal Bridge

The Salzbachtalbrücke is a 310 meter long, four-lane motorway bridge on the A 66 . It is located in the Wiesbaden district of Biebrich .

As a result of incorrectly attached assembly elements on a pillar, not all lanes have been accessible since January 22, 2019. T. diversions for heavy traffic.

location

The bridge lies between the Wiesbaden-Biebrich and Wiesbaden-Mainzer Straße junctions . It crosses the Mühltal through which the Salzbach flows and passes under Mainzer Strasse and the tracks of the right Rhine route and the Taunus railway . Below the bridge is the main sewage treatment plant of the waste disposal company of the state capital Wiesbaden , a little south of the hammer mill .

construction

It is a T-beam bridge made of prestressed concrete , which is designed as a box girder bridge in the area of ​​the columns . The length is 310 meters.

history

The bridge was completed in 1963 and was initially part of the extension of the Rhein-Main-Schnellweg, known as the "Wiesbaden south bypass". Since it was only designed for 20,000 vehicles per day, it had to be reinforced and renovated several times from 1985 onwards due to the stress caused by the increasing traffic. In 2007 and 2010 the bridge was strengthened with external prestressing.

Planned replacement building

Due to its poor state of preservation, it is expected that the bridge will no longer be able to meet traffic safety requirements from 2018. A replacement new building is therefore to be built, which in anticipation of the planned six-lane expansion of the A 66 between the Schiersteiner Kreuz and the Wiesbaden-Erbenheim junction is to have a standard cross-section of 36 m. After completion of the new building, it should initially remain four lanes, whereby the additional width should be separated by marking as an extra-wide hard shoulder.

The construction is to take place in two construction phases. In the first section, the southern half of the bridge is to be renewed, during which time traffic will be transferred to the northern half of the bridge. Before that, this should be widened by adapting the bridge caps in order to be able to continue to guarantee four-lane traffic management. In the second construction phase, the traffic will be transferred to the newly constructed southern half of the bridge, then the northern half of the bridge will be renewed.

The plan approval procedure was applied for in January 2015. The Darmstadt Regional Council then started a formal hearing process.

Preparatory felling work was carried out in February 2017. Work on the structure began at the end of 2017. The first construction phase (demolition and new construction of the southern half of the bridge) was originally supposed to be completed in mid-2020, the subsequent second construction phase (demolition and new construction of the northern half of the bridge) at the end of 2022.

In the course of the work, the bridge immediately to the west over the Aartalbahn is to be renewed. The total construction costs are estimated at 35 million euros.

Traffic volume

From To Average
daily traffic volume		 Share of
heavy goods traffic
2005 2010 2015 2005 2010 2015
AS WI-Biebrich (A 66) AS WI-Mainzer Strasse 77,000 66,700 80,400 6.0% 5.6% 3.4%

The reduction in the proportion of heavy goods vehicles in the 2015 census is due to the blocking or reduction of heavy goods traffic on the Schiersteiner Bridge .

Others

After the partial collapse of the Morandi Bridge in Genoa (Italy) on August 14, 2018, the state of concrete bridges in Germany became the subject of public discourse. On August 16, 2018, Hessian Transport Minister Al-Wazir heard from engineers from Hessen Mobil and showed him how they control the Salzbachtal Bridge.

On January 21, 2019, it became known that assembly frames, which were supposed to stabilize the bridge, had been incorrectly assembled, as a result of which tendons of the bridge were damaged.

Individual evidence

  1. ↑ Manual traffic census 2015 AS Wiesbaden-Biebrich-AS Wiesbaden-Mainzer Straße. BASt, January 26, 2017, accessed on July 11, 2018 . (Page 28 of the PDF file; 336 kB)
  2. ↑ A 66 Salzbachtalbrücke: From tonight with only one lane per direction of travel, press release from Hessen Mobil from January 21, 2019
  3. ^ A 66 - Wiesbaden - AS Mainzer Straße and AS Biebrich - new construction of the Salzbachtalbrücke Hessen Mobil as of December 2018
  4. ↑ a b c Public announcement of the state capital Wiesbaden, hearing procedure in the planning approval procedure, document 1 (explanatory report on the draft assessment). (No longer available online.) Hessen Mobil - Road and Traffic Management , January 2015, archived from the original on May 14, 2015 ; accessed on May 14, 2015 .
  5. ↑ Salzbachtal bridge can no longer withstand the load - new construction in 2016? Wiesbadener Tagblatt , January 17, 2015, archived from the original on May 14, 2015 ; accessed on May 14, 2015 .
  6. ^ A 66: Replacement construction of the Salzbachtal Bridge - felling work is expected to begin on Wednesday, February 8th, 2017. Hessen Mobil - Road and Traffic Management , February 7, 2017, archived from the original on February 19, 2017 ; Retrieved February 19, 2017 .
  7. ↑ 35 million for new bridges. (No longer available online.) Frankfurter Rundschau , January 16, 2015, archived from the original on May 14, 2015 ; accessed on May 15, 2015 .
  8. ↑ Manual road traffic census 2005. ( PDF ; 396 kB) Results on federal motorways. Federal Highway Research Institute , April 2, 2007, accessed on August 18, 2018 .
  9. ↑ Manual road traffic census 2010. (PDF; 337 kB) Results on federal motorways. Federal Highway Research Institute, November 11, 2011, accessed on August 18, 2018 .
  10. ↑ Manual road traffic census 2010. (PDF; 936 kB) Results on federal highways. Federal Highway Research Institute, December 22, 2011, accessed on August 18, 2018 .
  11. ↑ Manual road traffic census 2015. (PDF; 302 kB) Results on federal motorways. Federal Highway Research Institute, January 26, 2017, accessed on August 18, 2018 .
  12. ↑ Manual road traffic census 2015. (PDF; 810 kB) Results on federal highways. Federal Highway Research Institute, August 31, 2017, accessed on August 18, 2018 .
  13. ↑ FAZ.net August 17, 2018: Hairline cracks and a corset made of steel girders
  14. ↑ Hessenschau.de January 23, 2019: Salzbachtalbrücke damaged during construction work - traffic jams threaten